The tech sheet says that it is 49 state legal mod. Does any one know what state has deemed it illegal? Living in CA I think I may know the answer.

Yep, it's Calif. But Dinan always eventually gets CARB certification on their products. They just recently were informed their S3 for the E39 M5 has been approved. But it's a LONG, EXPENSIVE, LABORIOUS process to get CARB approval!! But Calif. is a HUGE market for Dinan; so they go through it. 'Makes them unique among ALL tuners.

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